CoroMill® 331
Multi-purpose side and face milling cutter
High-precision capability for numerous operations
High-quality surfaces, excellent metal removal rates and true 90° corners make this cutter the most productive of its kind.
Adjustable, spring-loaded cassettes with serrations
Adjustable cassettes enable you to set the cutter with high accuracy for precise groove dimensions. The cutter also features spring-loaded cassettes with serrations for security and easy precision setting for your desired width.
Internal coolant solution
Internal coolant regulates heat at the cutting zone for long and predictable insert tool life. It provides excellent chip evacuation, decisive for process security and groove quality.
Application area
- Grooving
- Parting off
- Double half side milling
- Shoulder milling
- Face milling
- Back face milling
- Gang milling
- Circular interpolation
Product range
Fixed-pocket design
Diameter: 40–125 mm (1.5–3 inch)
Width: 6–10 mm (0.25–0.5 inch)
Coupling: Bore with keyway, cylindrical shank, Weldon
Coolant: Available with and without internal coolant for all cutters
Adjustable full side and face
Diameter: 80–315 mm (3.15–12 inch)
Width: 6–26.5 mm (0.236–1.043 inch)
Couplings: Bore with keyway, cylindrical shank, Weldon, arbor
Coolant: Internal coolant available for diameter 80–160 mm (3.15–6 inch)
Adjustable half side and face
Diameter: 80–315 mm (3.15–12 inch)
Couplings: Bore with keyway, cylindrical shank, Weldon, arbor
Coolant: Internal coolant available for diameter 80–160 mm (3.15–6 inch)
Tailor Made
Wide assortment of Tailor Made tools offers extensive opportunities to optimize your cutting process.
- Full slot with radius with cassette
- Inserts with chamfer clearance to minimize overlap and reduce vibration
Tool description
Half side |
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CDX ≤ 114.5 mm |
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ap ≤ 10.6 mm |
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Full slot with radius |
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CDX ≤ 114.5 mm |
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ap ≤ 6–26.5 mm |
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Full radius |
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CDX ≤ 114.5 mm |
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ap ≤ 10–16 mm |
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Full-slot fixed pocket |
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CDX ≤ 34.0 mm |
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ap ≤ 6–10 mm |
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Full-slot cassette |
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CDX ≤ 114.5 mm |
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ap ≤ 6–26.5 mm |
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Cutters and available inserts
| Cutter bodies | Insert size | Neutral inserts | Right- and left-hand inserts | |||||||||
| Groove width range | Cutter versions (end of code) |
Radius (RE) 0.5 mm 0.020 inch |
Radius (RE) 0.8 mm 0.031 inch |
Radius (RE) 2 mm 0.079 inch |
Radius (RE) 1.52 mm 0.060 inch |
Radius (RE) 2.29 mm 0.090 inch |
Radius (RE) 3.05 mm 0.120 inch |
Radius (RE) 4 mm 0.157 inch |
Radius (RE) 4.83 mm 0.190 inch |
Radius (RE) 6.35 mm 0.250 inch |
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| mm | inch | |||||||||||
| 6–8 | 0.236–0.315 | CM | 04 |
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| 8–10 | 0.315–0.394 | DM | 05 |
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| 10–12 | 0.394–0.472 | EM | 08 |
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| 12–15 | 0.472–0.591 | FM | 08 |
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| 15–17.5 | 0.591–0.689 | KM | 11 |
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| 17.5–20.5 | 0.689–0.807 | LM | 11 |
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| 20.5–23.5 | 0.807–0.925 | QM | 14 |
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| 23.5–26.5 | 0.925–1.043 | RM | 14 |
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Accuracy
Run-out over master inserts
Fixed pockets
Radial run-out: 0.04 mm (0.0016 inch)
Axial run-out: 0.03 mm (0.0012 inch)
Adjustable pockets
Radial run-out: 0.02 mm (0.0008 inch)
Axial run-out: 0.02 mm (0.0008 inch)
Highlights
Demo: Internal coolant
See CoroMill® 331 with internal coolant in action.
Improve your groove quality
Internal coolant can play a crucial role when you want to further improve your groove milling operations.
New CVD grades for steel milling
CoroMill® 331 is now available with grades GC4330 and GC4340 for improved tool life and increased process security.
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Sandvik Coromant US - Mebane, NC
+1-800-Sandvik